Design and Analysis of 20–60 GHz Broadband Left-Handed Metamaterial

P. Kumar, Prerna Saxena
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引用次数: 1

Abstract

We present the design and characterization of a broadband left-handed metamaterial operating over 20–60 GHz. The proposed metamaterial unit cell comprises of a complementary split ring resonator along with an inverted-T shaped slot structure. The metamaterial cell demonstrates a reflection coefficient (S11) less than -20 dB and a transmission coefficient (S21) approximately 0 dB over the entire broadband frequency range of 20 GHz to 60 GHz. Parameter extraction procedures are used to validate the left-handed nature of the proposed metamaterial unit cell by uniquely determining refractive index, wave impedance, effective permeability, and effective permittivity from the complex S-parameters. The extracted permittivity, permeability and refractive index of the proposed metamaterial are found to be negative over the entire operating frequency range.
20 - 60ghz宽带左手超材料的设计与分析
我们提出了一种工作频率在20-60 GHz的宽带左手超材料的设计和特性。所提出的超材料单元电池包括一个互补的分裂环谐振器以及一个倒t形槽结构。在20 GHz至60 GHz的整个宽带频率范围内,该超材料电池的反射系数(S11)小于-20 dB,传输系数(S21)约为0 dB。参数提取程序通过从复s参数中唯一确定折射率、波阻抗、有效磁导率和有效介电常数来验证所提出的超材料单元电池的左手性质。所得的介电常数、磁导率和折射率在整个工作频率范围内均为负值。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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